Polk MM6 Momo 6.5’s better that Infinity Kappa 6.5?

I have a ten year old Tundra with nice factory JBL system in it. Just ordered four Kappa 6.5 ‘s for four doors. A guy has two used MM6’s momo he says we’re never used from when he worked at Panasonic. If I buy the Polks are they a big jump up from Infinity Kappas? Thanks. D

Forgot. If these are the newer MM series they are not meant to be driven with a head unit. Anything under 4 ohms could toast your unit. Something to keep in mind as I don't know why your configuration will be.